Floor putty having alpha nitrocellulose oil base



Patented Apr. 27, 1926.

" UNITED STATES PATENT OFFICE.-

ARNOLD M. TAYLOR AND FRANK A. BUOTE, OF STAMFORD, CONNECTICUT, ASSIGNORS TO ATLAS POWDER COMPANY, OF WILMINGTON, DELAWARE, A CORPORATION OF DELAWARE.

No Drawing.

To all whom it may concern:

Be it known that ARNOLD M. TAYLOR and FRANK A. BUOTE, citizens of the United object of the invention being to provide a putty which is especially adapted for use under pyroxylin finishing compositions, although it may function under materials other than pyroxylin finishing compositions with equal facility' It is a recognized fact that in the art of floor finishing, when a pyroxylin finishing composition is applied directly over an ordinary commercial putty in which the liquid vehicle is not thoroughly dry, or not absorbed to a large extent by the inert filling material contained in the putty, the solvents in the pyroxylin material attack the liquid vehicle, causing a marked tackiness to develop accompanied in most cases by a bleaching action of the tinted putty. This is similar to the bleaching action which" takes place when a pyroxylin finishingcomposition is applied directly over certain tinted wood fillers which have not dried sufficiently. A putty which has incorporated in it certain coloring materials is usually deprived of its color by the effect of a pyroxylin composition over it. We'at-' tribute this effect to the Washing away of the tinting materials which leaves the predominating pigment exposed and-this pigment is usually white or transparent.

'When a pyroxylin finishing composition is applied over a putty containing a nitrocellulose-oil base, the pyroxylin solvents present in such a composition do not exhibit 1 the effect of washing away the tinting colors as described above, but the pyroxylin finishing composition penetrates the nitrocellulose-oil putty to such an extent that it combines firmly with it and there is no tendency FLOOR PUTTY HAVING A NITROCELLULOSE OIL BASE.

Application filed. March 11, 1925. Serial No. 14,834.

for the oil in the nitrocellulose-oil putty to come to the surface and cause tackiness. There is apparently no deleterious effect exhibited on the tinting colors in a nitrocellu lose-oil putty when a pyroxylin finishing composition is applied over it but instead the tinting colors seem to be well protected by the nitrocellulose-oil putty, because the pyroxylin finishing composition dissolves the nitrocellulose-oil putty to a certain extent and upon drying envelops the pigments, thus preventing their being washed away by the pyroxylln solvents.

j The nature of an ordinary commercial putty is such that when it is used for filling the cracks of a floor, for example, a considerable period of time must elapse before it is sufiiciently dry to proceed with the finishing coats. Under this condition there is always a tendency to apply the finishing coats before the putty is thorough.- ly dry which results in decreased wearing qualities of the final finish because the putty is soft and affords an infirm foundation for the finishing materials.

The putty to which this inventionrelates dries much faster than an ordinafy commercial fioor putty and therefore affords a firm foundation over which-to apply pyroxylin finishing compositions. In a finishing operation where considerable putty is used, the advantages of a putty of this nature can be readily appreciated as regards the saving of time and improvement of wearing qualities of the final finish.

The formula given below is representas tive of a floor putty containing a nitrocellulose-oil base: i

While we prefer I to use clay, English china clay for example, other earth pig- .ments maybe employed in lieu. thereof.

Parts.

We combine any suitable tinting materials with the above described'base to secure the desired color of the finished product. While 'we contemplateusing any suitable vegetable pil, we may mention linseed oil as an example ofa suitable oil forv our purpose. To

the best of our knowledge we are the first to provide, a nitrocellulose putty for use under pyroxylin coatings; Therefor its is to be understood that by the term putty? as used in the appended claims, is meant a product sufficiently stifi' and tenacious to permit of its use as a craclg filler underalthough a putty made according to the specifications above given, is especially suited for'use under pyroxylln compositions,

we do not wish to limit its use to this purpose alone. y

We claim the following: I 1.' A putty of the character described comprising Y the following ingredients, combined in substantially. the proportions stated:

' Parts. A nitrocellulose solution 58; A vegetable oil Clay r r 100 12. A putty of the character described comprising a'nitrocellulose solution, a vegetable oil and an earth pigment, combined in such proportions that the combined amountof the'nitrocellulose solution and vegetable oil is substantially \equal to the amount of the earth pigment. 1 1

3. A putty of he-v character described comprising the following ingredients com bined in substantially the proportions stated, viz: I

Parts. Butyl acetate 48 -Vegetable oil 36 Nitrocellulose" 10 Clay 100 In'testimony whereof they afiifi their natures. a

ARNOLDM. TAYLOR.

FRANK A. BUOTE. 

